#ifndef __USAR_H
#define __USAR_H

#include "stm32f10x.h"
#include <stdio.h>

#define USART4_RX_BUFF_SIZE  256

extern u8 USART4_RX_BUF[USART4_RX_BUFF_SIZE];
extern u16 USART4_RX_CNT;
extern u8 USART4_RX_FLAG;

void USART4_Init(u32 bound);

#endif
